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  <title>De-register a function for execution on each tick</title>
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  <div id="layout-content"><div id="function.unregister-tick-function" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">unregister_tick_function</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.3, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">unregister_tick_function</span> &mdash; <span class="dc-title">De-register a function for execution on each tick</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.unregister-tick-function-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>unregister_tick_function</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$function_name</code></span>
   ) : <span class="type"><span class="type void">void</span></span></div>

  <p class="simpara">
   De-registers the function named by <code class="parameter">function_name</code> so it is
   no longer executed when a <a href="control_structures.declare.html" class="link">tick</a> is
   called.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.unregister-tick-function-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">function_name</code></dt>

     <dd>

      <p class="para">
       The function name, as a string.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.unregister-tick-function-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.unregister-tick-function-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="register_tick_function.html" class="function" rel="rdfs-seeAlso">register_tick_function()</a> - Register a function for execution on each tick</span></li>
   </ul>
  </p>
 </div>


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